ArneHD
Just a little bit mad
After conquering Morocco, Algeria and Tunisia my stability was at -3, that's to say, no mercants and rebelions everywhere. Then, in 1524, began the protestant revolution in Poland, Bavaria and Navarra (LOL) and protestantism spreaded fast in my iberian territories. I had no income at all and a chaotic country. That's why Austria and Denmark conquered Mali and Songhai before I could reach that region.
In my current game, I've been REALLY lucky: I, as Norway, Inherited Lithuania, the big one you see in the beginning, made bigger by conquest. I was able to establish a Baltic kingdom stretching down into the Caucasus. And I grabbed Mali and Songhai. Life is good.